One lesser-known Maps features is that you can download a part of a map to check out even when you don't have mobile data or wi-fi. It's especially handy for travelers, who often don't have cell service.

Here's how you use make it work:

First and foremost, download the Maps app. Then, either search for a location, like "New York City," or zoom into a specific area that you want to save for viewing offline, and click the location box at the bottom of the screen:

In the top right corner, you'll see three vertical dots. Click them, and you'll see a "Save offline app" option:

Google will ask you what you want to call the new offline map:

Then, you can find all your saved maps by swiping right any time on the app and tapping "Your places":

Viola! You'll see your saved maps, and be able to find your way around even without cell service or wi-fi (you'll still be able to see your location as a blue dot):